From f1f9c7792bd66413dad208d461975571789d4f10 Mon Sep 17 00:00:00 2001
From: Ran Benita <ran@unusedvar.com>
Date: Wed, 13 May 2020 16:59:44 +0300
Subject: [PATCH] Import `packaging` package lazily

---
 src/_pytest/config/__init__.py | 4 +++-
 src/_pytest/outcomes.py        | 5 +++--
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/src/_pytest/config/__init__.py b/src/_pytest/config/__init__.py
index 68c3822d0..bb5034ab1 100644
--- a/src/_pytest/config/__init__.py
+++ b/src/_pytest/config/__init__.py
@@ -23,7 +23,6 @@ from typing import Union
 
 import attr
 import py
-from packaging.version import Version
 from pluggy import HookimplMarker
 from pluggy import HookspecMarker
 from pluggy import PluginManager
@@ -1059,6 +1058,9 @@ class Config:
 
         minver = self.inicfg.get("minversion", None)
         if minver:
+            # Imported lazily to improve start-up time.
+            from packaging.version import Version
+
             if Version(minver) > Version(pytest.__version__):
                 raise pytest.UsageError(
                     "%s:%d: requires pytest-%s, actual pytest-%s'"
diff --git a/src/_pytest/outcomes.py b/src/_pytest/outcomes.py
index 7d7e9df7a..751cf9474 100644
--- a/src/_pytest/outcomes.py
+++ b/src/_pytest/outcomes.py
@@ -9,8 +9,6 @@ from typing import cast
 from typing import Optional
 from typing import TypeVar
 
-from packaging.version import Version
-
 TYPE_CHECKING = False  # avoid circular import through compat
 
 if TYPE_CHECKING:
@@ -217,6 +215,9 @@ def importorskip(
         return mod
     verattr = getattr(mod, "__version__", None)
     if minversion is not None:
+        # Imported lazily to improve start-up time.
+        from packaging.version import Version
+
         if verattr is None or Version(verattr) < Version(minversion):
             raise Skipped(
                 "module %r has __version__ %r, required is: %r"